Marry

Marry (マリー Marii) is one of All of Love's subclass. She is also Yully's twin sister.

Yully
Yully is Marry's twin sister. They share a close bond, often talking in synchronization and also using magic together.

All of Love
Marry is a subclass of All of Love, currently known as Snow Lily. It's unknown how the twins met him, but Lily seems to have picked them up from the streets. Like with all of his subclass, Lily cares about her and Yully a lot.

Trivia

 * Like her sister, her name is often mispelled and has received conflicting translations across the different media in the series. Marry is the most recently used romanization by Tanaka Strike.
 * The most common spelling is "Marie", one of the literal translations of the katakana used for her name.